mpfr: remove pregenerated files

[fosslinux]

No description provided.

[stikonas]

GCC checksum failed. Which is I guess expected since GCC binary statically links to mpfr.

[stikonas]

Hmm, I tried running it a bit further and it causes some issues with Python 3.11 (but not with the earlier pythons)

strtofr.c:883: MPFR assertion failed: (loop) <= ((mpfr_prec_t) ((((mpfr_uprec_t) -1) >> 1) - 256)) - (prec)
./Modules/cmathmodule.c: In function 'cmath_atanh_impl':
./Modules/cmathmodule.c:428:5: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
./Modules/_decimal/libmpdec/mpdecimal.c: In function 'mpd_qshiftr_inplace':
./Modules/_decimal/libmpdec/mpdecimal.c:2619:1: warning: visibility attribute not supported in this configuration; ignored [-Wattributes]
make: *** [Makefile:2725: Modules/cmathmodule.o] Error 1
make: *** Waiting for unfinished jobs....

[fosslinux]

Yikes...